Ventilator



(No Model.)

J. M. HAUPP.

VENTILATOR.

Patented Feb. 1, 1898.

INVENTOR WITNESSES m: norms P'YERS c0. mom-Limo JOHN M. HAUFF, OFAiLLEGI-IENY, PENNSYLVANIA.

VENT] LATOR.

SPECIFICATION forming part of Letters Patent No. 598,371, dated February1, 1898.

Application filed April 27, 1897. Serial No. 634,084. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN M. HAUFF, of Allegheny, in the county ofAllegheny and State of Pennsylvania,haveinvented a new and usefulImprovement in Ventilators, of which the following is a full, clear, andexact description, reference being had to the accompanying drawings,forming part of this specification, in which-- Figure 1 is a partialside elevation of a railway passenger-coach having a clearstory providedwith my improved ventilator. Fig. 2 is a partial sectional view of thesame. Figs. 3 and 4 are longitudinal vertical sections showing twodifferent forms of my improved ventilator; and Figs. 5 and 6 arevertical sections of Figs. 3 and 4, respectively.

My invention relates to ventilators, and more especially to thoseemployed upon railway passenger-cars, and is designed to provide animproved device of this character which, while allowing entrance andexit of air, will prevent the entry of smoke and cinders into the car.

In the drawings, 2 represents the roof of the clearstory of a car, and-3the side portion of the same. On the roof of the clearstory I show thesimplest form of my ventilator, this being shown in larger detail inFigs. 4 and 6. It consists of a hollow box-like case having alongitudinally-curved cover 4, which projects laterally beyond the sides5 5, narrow arc-shaped openings being provided between the cover and theupper edges of the sides. The cover is preferably held in place bystrips 6, secured to the side and to the cover or deflector 4, and theends of the deflector 4 are preferably bent inwardly, so as to leave avery narrow space between the ends of the bottom 8 of the ventilator andthe end portions of the deflector, as shown at a. From the bottom orbase portion of the ventilator the tube 7 leads to the interior of thecar.

In operation-as the. car moves in either direction the air strikingagainst the curved cover or deflector will pass over the same and createa suction, which draws the air from the ventilator out through thenarrow openings at the sides. The deflector projecting beyond the sidesprevents entry of dust or cinders contained in the current of airstriking the Ventilator, and the foul air is thus drawn out of the carwithout entry of objectionable impurities.

In placing a ventilator upon the side of the clearstory or upon any partof the side portion of the car I employ the form shown in Figs. 3 and 5,in which the bottom 8 is curved downwardly and is closed, except forasmall hole 9,through which any impurities may pass out of theventilator. In this case the tube 7 leads from the side of theventilator in through the side of the car or clearstory, and it isevident that the action will be the same as before, the current of airstriking and being deflected by the curved cover, so as to draw out theair from the upper part of the car, while the current of air itselfpassing over the ventilator is prevented from entering it.

The advantages of my invention will be apparent to those skilled in theart, since a cheap, simple, and effective device is provided by whichventilation of a car or other structure may be attained without theentry of cinders or objectionable matter.

Many changes in the exact shape of the ventilator may be made in thescope of my claims.

I claim 1. In a ventilator a closed hollow box provided with closedsides having curved upper edges, and a curved convex cover-plate formingthe top of the box and extending laterally beyond its sides, the onlysubstantial openings in said box to theouter air consisting in curvednarrow slots between the upper edges of the sides and the cover.

2. In a ventilator the combination with a box having a closed bottom anda tube leading therefrom into the car or apartment, said box havingclosed sides provided with curved upper edges, and a convex cover-plateextending laterally beyond its sides and supported slightly above theirupper edges, leaving narrow curved slots which form the only substantialopenings to the outer air.

3. In a ventilator, the combination with a box having a closed bottomand closed sides having curved upper edges, of a longitudinally-convexdeflector supported above the sides and extending laterally beyond them,the deflector being carried upon supports secured to the sides.

In testimony whereofI have hereunto set my hand.

JOHN M. IIAUFF. Witnesses:

GEORGE I. HOLDSHIP, H. Gonwm.

